Airship



I1. SCHUETTE.

AIRSHIP.

APPLICATION FILED JUNE 25, 1,919'.

Pai-,ema me 27,1922.`

ythan when arranged 1, mehrer s IGEANN SEUETTE, 02E' ZEESEN-KOENlGS-XVUSTERHAUSEN,. NEAR BERLIN, GER-'- MANY, ASSIGNOR, BY CORPOBATLON, 0F YORK, N.

MESNE ASSGNMENTS, T0 AMERICAN NVESTIGATON Y.. A CQREORTION OF MARYLAND.

:lppleation lerl June 25,

tudinal stiilness oi the (irait. in form ot ,a

gangway. Such keel was heretofore arranged outside of the framework or the envelope bodye which, however. resulted in numerous disadvantages. Such an outside` keel. on the one hand. is readily subjectto being; injured in landing. and on the other hand, it naturally will considerably increase the height oi the craft. which should he avoided Jf'ar as possihle with regard to leeway, a good horizontal steeringcapacity and a greater 'facility ol holding the rrait to the taround against the Wind.

('ontrary to such old constructions. the present invention provides that the grangway keel is disposed not as usual outside of the gasenvelope hody, out .within the same. By such arrangement the disadvantages mentioned aliove are avoided and it iS furthermore obtained that such lell is less exposed to tensile and compression strains outside or" the airship` as in the latte-r case the lower longitudinal heam is. h v the height of the keel. further away from the neutral axis than all longitudinal heams in the lower portion -otf the iframe work oli the respective airship.

ln the accompanying drawing the invention Fig. l is a longitudinal view of an airs shi without envelo e. Fior. 2 is a cross see- Specification of Letters Patent.

Patented June 27, i922. 1919. serial ne. Soares., i

tion of the same on a larger scale. Fig. 3 a eonstructional forni. of the keel, likewise on a larger scale7 and Fig. 4.- is a plan of Fig. 3. Figs. 5 and 6 two `other modifica tions or the keel according to the present invention.

its shown in the drawings the ga'lngway keel ais disposed within the lower portion ol the inwardly braced gas-enveloping; frame b, from which the cars or gondola-s are suspended. The keel a extends from stem to stern; itis composed in known manner oi longitudinal beams c, ties Z and `braces e, ot' which the latter two are only partly shown in Fig. l. In the constructional lforin according to Figs. 2, 3 and lthe keel has the shape of a triangle, it may however also he made ol: a trapezoid section, Fig. 5 or o'Fa curved section. Fig. G. The design of the gangway itself is such, that the same will meet its purpose as keel ot the airship.

Nh-at l claim is: l. ln a rigid airship, a rigid gas-envelop ing' France. a supplemental heavy and rigid strengthening` 'trame formed integral with the bottom portion of said rigid gas-enveloping frame and being enclosed thereby, said supplemental frame constitutinga keel and having aI chamber or passage extending longitudinally of the airship. Y 52. 'ln a rigid airshi'p, a rigidfas-enveloping .frame having a plurality of sectors, a supplemental heavy and rigid strengtheningrame mounted in one of said sectors and formed integral with the said rigid gasenveloping' trame` said supplemental frame constituting a keel and having a chamber or passage extending longitudinally of the airship.

In testimony whereof l". have aiiixed my signature.

JOHANN SCHUETTE. 

